code: def test_sanity_l(test_images):
      for im in test_images:
          roundtrip(im.convert("L"))
  
file_path: pillow-simd/Tests/test_image_fromqimage.py
imports: import pytest
  from PIL import Image, ImageQt
  from .helper import assert_image_equal, hopper
label_desc: Use image node_id 6 for calling a global function with example usage: test_sanity_l(test_images) without return types